Calibrated polyvinyl chloride tube of urine bag in urine output measurement of neonates

A novel equipment for measuring the urine output in paediatric patients

“…Usually, the urinary catheter is connected to 100–200 cm long polyvinyl chloride (PVC) tube which is attached to calibrated urobag of 1 L capacity through calibrated uromoter of 100 ml capacity. [ 3 ] Since the dead space of PVC tube is more owing to its long length and diameter, it is difficult to measure urine output accurately as urine is commonly found to be accumulated in PVC tube. To overcome this problem, it requires frequent milking of PVC tube to facilitate the collection of urine in bag.…”